A pair of ring-necked ducks, harder to capture as a couple because they dive for their food and just when you think you have them lined up for a shot, one or both of them disappear!
Here's some info from the Cornell Lab of Ornithology: "This bird’s common name (and its scientific name "collaris," too) refer to the Ring-necked Duck's hard-to-see chestnut collar on its black neck. It’s not a good field mark to use for identifying the bird, but it jumped out to the nineteenth century biologists that described the species using dead specimens."
